Bonnaroo has named its 2010 comedy line up, which includes Conan O'Brien, Margaret Cho, Aziz Ansari, Jeffrey Ross Roasts Bonnaroo, Greg Giraldo, Bo Burnham, Doug Benson, Nick Kroll Paul Scheer & Rob Huebel, John Roberts, Baron Vaughn, and Chelsea Peretti. Check out a complete line up in the Spacelab Festival Guide.

Tickets are on sale now.

In a few short years, Bonnaroo has quickly become one the U.S.'s biggest and best festivals. Set on a 700 acre farm in Manchester, Tennessee, it's the playground of the cool kids and the hippies, at the same time, on the same field.

Bonnaroo happens on June 11th - 14th in Manchester in Coffee County, Tennessee.

Check out the Spacelab Festival Guide for more information on Bonnaroo.